Under an ERB design, where should a tenant's IRB interface be placed for correct multitenancy?
Select an answer to reveal the explanation.
Short Explanation
IRB is the tenant's front desk—it has to sit inside that tenant's routing instance. Park it in inet.0 or a shared junk drawer and the gateway starts answering for the wrong agency. ERB still means the leaf does routing, but routing for the right VRF.
Full Explanation
In edge-routed bridging, tenant IRBs provide L3 gateway services and must belong to the corresponding tenant routing instance/VRF. Placing IRBs in underlay/management contexts or a shared catch-all instance breaks multitenant forwarding and policy. Correct instance membership is as important as VLAN-to-VNI mapping for ERB multitenancy.